Objective  To investigate the effect of ultrasound-guided transversus abdominis plane block on intraoperative and postoperative analgesia in laparoscopic abdominal surgery.

  Methods  Sixty ASA Ⅰ-Ⅱ patients with abdominal tumor, undergoing laparoscopic/ robotic surgery were randomly assigned into two groups: one group undergoing general anesthesia (G group) and the other undergoing general anesthesia combined with transversus abdominis plane block (G+T group). After induction of general anesthesia in the G+T group, the patients received transversus abdominis plane block with injection of 15 mL of 0.25% ropivacaine on each side, guided by ultrasound. The operation time, resuscitation time, orientation recovery time, and the dosage of remifentanyl were recorded and compared. During surgery, the MAP and HR at different time points (5 min before, after surgical incision; 30 min after the surgery beginning; surgery finished) between the two groups were recorded and compared. Additionally, the VAS scores at different postoperative time points were compared between the two groups.

  Results  Compared to the G group, the resuscitation time, orientation recovery time and the dosage of remifentanyl in the G+T group were significantly decreased (P < 0.05). In G group, compared to the basic value, the MAP and HR at 5 min and 30 min after surgical incision were significantly increased (P < 0.05); whereas in the G+T group, the MAP and HR remained stable at different time points (P>0.05). Moreover, compared to the G group, the VAS score in the G+T group was significantly lower at 2, 6, and 12 hours postoperatively (P < 0.05).

  Conclusions  General anesthesia combined with transversus abdominis plane block in patients undergoing laparoscopic abdominal surgery reduces the intraoperative and postoperative remifentanil consumption, improves the efficacy of perioperative analgesia, and enhances the patient's recovery after surgery.